Aquasana Rhino 4-Pack 10″ Whole House Pre-filter Cartridges

EQ-304 sediment pre-filter replacement cartridge 4-pack, for use with the EQ-300 Rhino Whole House Water Filter.
The sediment pre-filter is used to prevent dirt and sediment particles from entering and clogging the main filter unit. This cartridge should be replaced every 3-6 months depending on water quality and sediment levels. Change when color darkens or water flow slows.